[PATCH v2] ath6kl: Fix ath6kl_bmi_read_hi32 macro
From: Frederic Danis <hidden>
Date: 2014-06-02 12:18:15
Subsystem:
atheros ath generic utilities, atheros ath6kl wireless driver, the rest · Maintainers:
Jeff Johnson, Linus Torvalds
tmp may be used uninitialized if ath6kl_bmi_read() returns an error. Signed-off-by: Frederic Danis <redacted> --- drivers/net/wireless/ath/ath6kl/bmi.h | 3 ++- drivers/net/wireless/ath/ath6kl/init.c | 12 ++++++++++-- 2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/bmi.h b/drivers/net/wireless/ath/ath6kl/bmi.h
index 18fdd69..397a52f 100644
--- a/drivers/net/wireless/ath/ath6kl/bmi.h
+++ b/drivers/net/wireless/ath/ath6kl/bmi.h@@ -242,7 +242,8 @@ struct ath6kl_bmi_target_info { (void) (check_type == val); \ addr = ath6kl_get_hi_item_addr(ar, HI_ITEM(item)); \ ret = ath6kl_bmi_read(ar, addr, (u8 *) &tmp, 4); \ - *val = le32_to_cpu(tmp); \ + if (!ret) \ + *val = le32_to_cpu(tmp); \ ret; \ })
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index d5ef211..6e1e699 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c@@ -1161,11 +1161,19 @@ static int ath6kl_upload_board_file(struct ath6kl *ar) ath6kl_bmi_write_hi32(ar, hi_board_data, board_address); } else { - ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address); + ret = ath6kl_bmi_read_hi32(ar, hi_board_data, &board_address); + if (ret) { + ath6kl_err("Failed to get board file target address.\n"); + return ret; + } } /* determine where in target ram to write extended board data */ - ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address); + ret = ath6kl_bmi_read_hi32(ar, hi_board_ext_data, &board_ext_address); + if (ret) { + ath6kl_err("Failed to get extended board file target address.\n"); + return ret; + } if (ar->target_type == TARGET_TYPE_AR6003 && board_ext_address == 0) {
--
1.7.9.5